The Savannah biome within Minecraft is particularly nice on the eyes, which means it could be improved by building all over it, too.
This seed offers a large biome with plenty of mountains surrounding the area. A multi-leveled city would work perfectly here. Along with the surrounding area, a group of long rivers run through everything, so travel can be easier. A river district would be a nice accompaniment, too.
Insert Minecraft seed '1776267154993242836' to build in this one.